Physical and Mechanical Properties of the Coffee Tree Related to Harvest Mechanization
2003
Aristizábal T., I. D. | Oliveros T., C. E. | Alvarez M., F.
Physical and mechanical properties of 50 and 60 month old coffee trees of three varieties were experimentally determined at the Centro Nacional de Investigaciones de Café (CENICAFE). We measured the following mechanical properties, which are required for mathematical modeling of the tree and for the design of mechanical harvesters using vibrations applied to the trunk: mass of trunk, limbs and leaves; density, elasticity, stiffness, damping, and natural frequency of the trunk; diameter of trunk at different heights; and number of fruits per node. From a mechanical viewpoint, the red-fruit Caturra variety exhibited the best physical and mechanical properties for the use of harvesters applying vibrations to the trunk.
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